hinsdale



QUAY & HINSDALE.

Stove Grate.

No. 107.197. v Patented sept. 6,1870.

N.PETEHS, PHOTULITHDGAFHER. WASHINGTON. D. C,

iiinted tait/5 WILLIAM QUAY AND EZRA' M. HINSDALE, OF TROY, NEW YORK.

Letters Patent No. 107,197, dated Sqitomber 6, 1870.

sTovE-GRATE.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern.'

Beit known that we, WILLIAM QUAY and EzRA M. tlrNsDALn, of'y Troy, in the county ot'Reu-sselaer and 1n the State of New York, have invented cert-aiu new and uselul Improvements in Stove-Grates; and dohcreby declare that the following is a full,`clear, and exact `description thereof, reference being had to the accompanying drawing making a part of this specification, in which- Figure l is a plan view'f the upper side of our grate; v

Figure 2 is a like view of the lower side oi the same;

Figure 3 is a vertical cross-section of the supporting ring for the grate, on the line a: x of tig. 1;' and Figure 4 is a central cross-section ot' the pivoted vcenter piece.

A Letters of like naine and kind refer to like parts in each ofthe iigures.

Our invention is an improvement in grates for use m stovesor f'uruaces burning coal; and

It consists, principally, in a center-piece' pivoted to or within a suitableopening at the center of the grate, with its axis parallel with the face thereof, so as to be capable of a vertically rotary motion independent of and without disturbing said grate, as is hereinafter set fbrth.

It further consists in a center-piece pivoted to orwithin a suitable central opening -within a grate,so as to have therein an independent vertically rotary motion, and provided, upon itsperiphery, with suitable abrading or grinding points, ribs, or grooves, as is hereinafter shown.

It further consists in providing the inner edge of the opening t'or the reception ot' the pivoted centerpiecewith teeth, corrugations, or their equivalents, asis hereinafter specified.

In the annexed drawing- A representsa grate of usual general form, provided with a pivotal bearing, B, and a shank, O, which projects horizontally and radially outward trom opposite sides thereof.

Pivotedf horizontally within a suitable opening passing vertically through the center of the grate A is a piece ot metal, D, having a circular form transversely and an oval shape iu a line with its axis, which axis is formed by means of a short journal projecting outward from one end of said piece, and pivoted .within a bearing at one side of the opening, and a shank, E, project-ing outward from the opposite end, and titted loosely within a groove formed in the lower side ofthe. Shank G.

'lwo clamps, F and F', fitting over the journal and shank of the center-piece D, and secured to the grate by means ofthe sere-wsj, hold said centerfpiece iupoindependent of' said grate.

sition, `while, allowing it to revolve freely within and c The surface ,of the center-piece D and the contigo'- ous edge of the opening within which itis pivoted heing toothed, grooved, or otherwise roughened bycausingr the former to revolve, the clinker or slag rest-ing upon the center of the grate, will be` loosened and,

broken or ground up until su'iciently fine to pass downwardl into the ash-box, leaving the center' of the tire open and free from all obstructions to the admission of air, instead of being clogged up, as is usually the case. y

G representsa ring of metal corresponding interiori y in shape with and having a size somewhat greater than the exterior of the grate, for which it furnishes a support, thejournal B and shank C being contained wit-hin suitable grooves or bearings prdvided lupon or within the upper fare of said ring, so as to permit saidgrateto revolve vertically within thelatter, when it is desired to dump the coutent-sof the tire-pot.

In order to coutiue the grate iu a horizontal position when the center-piece is revolved, so that its mot-ion shall not be communicated to and dump thegrate, the latter is' provided,`upon one side, with a stopor lug, A', which projects horizontally and radially outward therefrom, and engages with the side ot' the supporting ring G, within which is provided a semicircular groove corresponding in size. with said stop and containing the same.

It being desirable that the grate should be capable of a horizontal rotary movement, aring rests upon and is supported by means ota number of rollers, H, which are pivoted within suitable bearings secured to or upon the stove, the axis of each roller being in a line with the center of said grate.-

A movable plate lit-ting over the Shanks C and E,

and covering the horizontal slot within the exterior plate of the stove through which said vshank projects completes the device, which is operated as follows:

When it is desired to remove the ashes and cliuker or slag from the tire, the grate may be rotated back and forth horizontally by means of a suitable handle placed over and embracing the squared end of the shank C, which' handlel may also be used to revolve said grate vertically, so as to dump its contents within the ash-box.

1t' the center of' the grate becomes clogged, the obstruction lnay be removed by rotating the center-piece l), for which operation a second handle is fitted t'o or upon the squared end ofthe shank E, sai'd shank projecting suicicntlybeyond the shank U to furnish a bearing for said handle.

As'thus constructed, will be seen that it is not possible for the grate to become clogged bythe wedging of pieces of coal: or slate between its outer edge y and the contiguous portions of the stove, that the horizontal or shaking motion oi' said grate is rendered far mortl easy by the use ol' the roller hearings than in gratos of usual construction, and that, hy means of the pivoted center-piece, the center portion ot' the. hase oi' the colmnn of l'nel can be kept entirely fri-e from 'all obstructions, so as to greatly increase the heating capat'ity ol' the stove.

Having thus fully set forth the nature and merits of our invention,

What we claim as new is- A center-piece pivoted to or within a. corresponding opening within a grate, with its axis parallel with the face thereof, so as t0 be capable of a vertical rotary motion independent of said grate, and having its surface provided with suitable ahrading or grinding points, ribs, or grooves, substantially as and for the purpose specified.

Also, in combination with the above-named pivoted 4center-piece, a toothed orserrated opening for oon- 

